Question

Please select the best answer from the choices provided

Answer 1

we are given

$2^{\frac{1}{2}}\cdot 2^{\frac{1}{2} }$

we can use exponent formula

$a^n \cdot a^m=a^{n+m}$

now, we can use this formula

$2^{\frac{1}{2}}\cdot 2^{\frac{1}{2} }=2^{\frac{1}{2}+\frac{1}{2} }$

we can add exponent

and we get

$2^{\frac{1}{2}}\cdot 2^{\frac{1}{2} }=2^{\frac{1+1}{2} }$

$2^{\frac{1}{2}}\cdot 2^{\frac{1}{2} }=2^{\frac{2}{2} }$

$2^{\frac{1}{2}}\cdot 2^{\frac{1}{2} }=2^{1}$

$2^{\frac{1}{2}}\cdot 2^{\frac{1}{2} }=2$

So, option-B.......Answer

Answer 2

Answer:

The correct answer option is b. 2.

Step-by-step explanation:

We are given an expression $2^{\frac{1}{2} }.2^{\frac{1}{2} }$ and we are supposed to simplify it.

We know that $a^b.a^c= a^{b+c}$ which means if the bases are same, then the exponents are added up.

So here, our bases are same i.e. 2 so we will add up the exponents to get:

$2^{\frac{1}{2}+ \frac{1}{2} }$

Taking the LMC of the exponents to get:

$2^{\frac{1+1}{4} }$

$2^{\frac{2}{2} }$

The fraction in the exponent gets cancelled so we are left with 2.